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System and method for simultaneous sea drilling operations

a technology of simultaneous operation and system, applied in the direction of sealing/packing, special purpose vessels, borehole/well accessories, etc., can solve the problems of shortening the amount of time needed for operation of the rig, time and cost needed for the rig,

Active Publication Date: 2013-03-05
PETROLEO BRASILEIRO SA (PETROBRAS)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention aims to overcome the problems of simultaneous execution of operations using only one tower and to provide benefits even if there are multiple towers on an oil rig. The invention reduces the time and cost required for assembling, dismantling, and maintaining equipment installed by a drilling rig, making the operation of the rig more reliable and efficient. The invention also allows for simultaneous execution of operations at different positions, reducing idle time and increasing efficiency of rig operations.

Problems solved by technology

Substantial reduction of rig time and cost needed for assembling, dismantling, and maintaining equipment installed by a drilling rig, resulting in a shorter amount of time necessary for operating the rig;ii.

Method used

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  • System and method for simultaneous sea drilling operations
  • System and method for simultaneous sea drilling operations
  • System and method for simultaneous sea drilling operations

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Embodiment Construction

[0033]In the following description, the same drawing reference numerals are used for the same elements in different drawings. The matters defined in the description, such as detailed construction and element descriptions, are provided to assist in a comprehensive understanding of the invention. Also, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail.

[0034]FIG. 1 presents a schematic illustration of an exemplary embodiment of a system for simultaneously executing operations with an oil rig. The system comprises:[0035]i. At least two separated sustaining beams 6 which extend horizontally over the whole length of the moon pool and are substantially parallel to one another. The at least two sustaining beams 6 are also substantially parallel to the surface of the sea;[0036]ii. A first mobile base 4 which is supported on the at least two sustaining beams 6. The first mobile base 4 is able to move horizontally o...

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Abstract

A system and method for carrying out simultaneous operations of assembling, dismantling, and maintaining equipment installed by an oil rig, using the tools, systems, and the areas available on the rig itself. The system includes two parallel and separated sustaining beams and two mobile bases supported on the beams to carry out the simultaneous operations. This system allows a method for simultaneously assembling two items of subsea equipment which are to be installed to be performed. Also, this system allows a method for simultaneously replacing and assembling subsea equipment to be performed. Additionally, the equipment can be lowered or recovered using either a derrick and pipe string or a winch and steel cable.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority under 35 U.S.C. 119 (a) from Brazilian Patent Application PI 0803619-5, filed on Sep. 19, 2008, in the Brazilian Intellectual Property Office, the disclosure of which is incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]Apparatuses and methods consistent with the present invention relate to systems and methods for the simultaneous execution of operations. In particular, the present invention relates to the simultaneous operations of assembling, dismantling, and maintaining equipment being installed by an offshore oil rig.[0004]2. Description of the Related Art[0005]Oil production at sea requires the use of drilling rigs and completion rigs. These drilling rigs and the completion rigs are used during many different phases in the operation of an offshore oil rig. These phases range from the drilling of wells to the lowering of subsea equipment, such as ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): E21B19/00
CPCB63B35/4413E21B7/128E21B15/003E21B15/02E21B19/002
Inventor RODRIGUES, ROBERTO
Owner PETROLEO BRASILEIRO SA (PETROBRAS)
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